This is a problem that I have experienced since Ubuntu 11.04 (I don't think I used a VPN with 10.10, can't remember). I posted here (post #9) in September 2011: http://ubuntuforums.org/showthread.php?t=1692353
I'm having the exact same problem with Ubuntu 12.04 - I can connect, the connection will stay up and work for a while, then it will disconnect at a seemingly random period (usually within a 10 minute timeframe).
I'm having to use Windows 7 on the same computer (dual boot) to establish reliable PPTP VPN connections that stay up. This is one of the main reasons I can't ditch Windows completely.
This is a problem that I have experienced since Ubuntu 11.04 (I don't think I used a VPN with 10.10, can't remember). I posted here (post #9) in September 2011: http:// ubuntuforums. org/showthread. php?t=1692353
I'm having the exact same problem with Ubuntu 12.04 - I can connect, the connection will stay up and work for a while, then it will disconnect at a seemingly random period (usually within a 10 minute timeframe).
I'm having to use Windows 7 on the same computer (dual boot) to establish reliable PPTP VPN connections that stay up. This is one of the main reasons I can't ditch Windows completely.